// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_DELEGATE_H_
#define CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_DELEGATE_H_

#include "base/macros.h"
#include "content/common/content_export.h"
#include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationLockType.h"

namespace content {

class WebContents;

// Can be implemented to provide platform specific functionality for
// ScreenOrientationProvider.
class CONTENT_EXPORT ScreenOrientationDelegate {
public:
    ScreenOrientationDelegate() {};
    virtual ~ScreenOrientationDelegate() { }

    // Returns true if the tab must be fullscreen in order for
    // ScreenOrientationProvider to respond to requests.
    virtual bool FullScreenRequired(WebContents* web_contents) = 0;

    // Lock display to the given orientation.
    virtual void Lock(WebContents* web_contents,
        blink::WebScreenOrientationLockType lock_orientation)
        = 0;

    // Are ScreenOrientationProvider requests currently supported by the platform.
    virtual bool ScreenOrientationProviderSupported() = 0;

    // Unlocks the display, allowing hardware rotation to resume.
    virtual void Unlock(WebContents* web_contents) = 0;

private:
    DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDelegate);
};

} // namespace content

#endif // CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_DELEGATE_H_
